Step adapter for rung ladders



FIG. 1 is a top rear perspective view of a step adapter for rung ladder, showing our new design;

FIG. 2 is a bottom rear perspective view thereof;

FIG. 3 is a side view of the step adapter, wherein the opposite side view is a mirror image thereof;

FIG. 4 is a rear view of the step adapter;

FIG. 5 is a front view of the step adapter;

FIG. 6 is a bottom view of the step adapter; and,

FIG. 7 is a top view of the step adapter.

The Broken lines in the drawings are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a step adapter for rung ladders, as shown and described. 